Disk harrow and weeder.



No. 876,145. PATENTED JAN. 7, 1908. 'I'. BUCHET & E. A. MULLINIX.

DISK HARROW AND WEEDER.

APPLICATION FILED JUNE 11, 1907.

2 SHEETS--SHEET 2.

vwznow ANK BUCHE TI ELMEH AMULmN 1x UNITED sTATEs PATENT oEEIoE.

FRANK BUCHET AND ELMER A. MULLINIX, OF WALLA WALLA, WASHINGTON.

DISK HARROW WEEDER.

Specification of Letters Patent.

Patented Jan. '7, 1908.

To all. ulzom it 'may concern:

Be it known that we, F RANK BUCHET and ELMER A. MVLLINIX, citizens ofthe United States, residing at W alla Walla, in the county of Wallawallaand State of- Washington, have invented a new and useful Improvement inDisk Harrows or lfVeeders, of which the following is yaspecili'catiorifl j This invention relates to liarrows or weeders ofthat class having a plurality of disks, and has forits object to providean improved frame for supporting the disks, and provided with means 'forraising or lowering the frame to var v the depth of cut or to lift thedisks from the ground. A further object is to provide novel and improvedmeans for varying the angle of the disks with respect to the line ofdraft.

The implement is illustrated in the accompanying drawings, in whichFigure l is a top plan view thereof. Fig. 2 is a side elevation. Figs. 3and 4 are details of the disk hangers.

The frame of the machine is composed of front and rear bars A and B, andside bars C and D, joined together at the ends to form a rectangularframe. The bars are preferably angle irons with, the vertical flangesstanding at the outer edge. The front and rear bars are connected bycross supports E, F and G and the tongue H is attached to the front barA and to the front end of the cross bar F, by suitable braces and bolts.The seat K is supported on the middle cross bar F. The whole frame isthus cheaply and stoutly formed of angle and strap irons, boltedtogether. The disks R are carried in two gangs or rows, one under thefront bar and the other under the rear bar of the frame. Each disk issupported by a hanger casting S which has at the top an arm s with ashort end of which is pivotally connected the horizontal flange of theframe irons by a bolt T' and the long end of which is connected toAlaterally sliding angle bars U by pivot bolts u, and by shifting thesebars the disks are turned on the pivots T to vary the angle thereof withrespect to the line of draft. The vertical flanges of the said bars Cand D of the frame are slotted is indicated at c, and the ends of thebars U extend and Work through these slots, and vrest upon theh0rizontal flanges of said side bars, the vertical flanges of the bars Ubeing cut away at the ends, to permit the movement.

`The long ends of the arms s ot the disk nected by rods a to theshifting bars respec-v tively, and it is obvious that the angle of thedisks may be varied as desired, by manipulation of the lever.

The frame and parts carried lthereby are' mounted upon cranked axles Mand wheels- L, at opposite sides of the machine, each axle having itslatch lever P and quadrant Q, the latter being bolted to the cross barsE and G and the axles nding bearings in said bars and in the verticalflanges of the side bars C and D. The depth of cut of the disks may bevaried, or they may be lifted entirely from the ground, by properoperation of the levers. The simplicity, convenience and ease ofoperation are apparent, as well as the cheapness of construction, allthe main parts being readily produced of stock or ordinary material, theonly particular or special casting reuired being the disk hangers. Theline of raft is not varied at any angle of the disks and the lateralpressure of one gang is counteracted by that ofthe other.

We claim An improvement in disk harrows, substantially as describedconsisting of a main frame having side bars provided with guide openingsand having front and rear bars'in advance and in rear of theirrespective guide openings, slide bars' movable laterally in the main`frame and guided in the said guide openings, said slide bars beingarranged one -in rear of the front bar and the other in ad- 'Vance' ofthe rear bar, a lever pivotally supported in connection with the mainframe midway between the said slide bars and movable in a lateraldirection between said slide bars, detent means for securing said leverlin operation of the` lever, disks below the front and rear bars,hanges'for said disks jour Operate to tilt the front and rear disks, allnal'ed vertically vin the frnt and rear bars substantially as and forthe purpose set forth'. 10 and having for the front disks rearwardly.FRANK BUCHET rejecting crank arms, and for the rear disks ELMR AMULLNIX 5 orwardly projecting crank arms, the said front and rear crankarms being votally Witnesses: connected with their respective slide barsGEORGE W. THOMPSON,

whereby the operation of the one lever may (L F. JONES.

